os intermetatarseum

os in·ter·met·a·tar·se·um

a supernumerary bone at the base of the first metatarsal, or between the first and second metatarsal bones, usually fused with one or the other or with the medial cuneiform bone.
Synonym(s): intermetatarseum

os in·ter·met·a·tar·se·um

(os in'tĕr-met-ă-tahr'sē-ŭm)
A supernumerary bone at the base of the first metatarsal, or between the first and second metatarsal bones, usually fused with one or the other or with the medial cuneiform bone.
References in periodicals archive ?
We discuss some of the more commonly symptomatic bones, namely the os acromiale, os styloideum, metacarpal and hallux sesamoids, patella, os trigonum, os calcaneus secundarius, accessory navicular, os peroneum, and os intermetatarseum.
Os intermetatarseum is present in approximately 1% of feet.
Accessory ossicles and sesamoid bones: spectrum of pathology and imaging evaluation
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